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| 堤坝中防渗(复合)土工膜的布置型式及计算理论研究 | |
| 引用本文： | 岑威钧,沈长松,李星,杨子涛.堤坝中防渗(复合)土工膜的布置型式及计算理论研究[J].红水河,2004,23(3):70-74. |
| 作者姓名： | 岑威钧 沈长松 李星 杨子涛 |
| 作者单位： | 1. 河海大学水利水电工程学院,江苏,南京,210098 2. 宁波水利水电规划设计研究院,浙江,宁波,315000 3. 佛山市高明区水利勘测设计室,广东,佛山,528500 |
| 摘 要： | 复合土工膜作为一种良好的防渗材料可以布置在堤坝的上游面，有时还兼作铺盖进行联合防渗，也可以布置在堤坝的中间作为防渗心墙使用。结合(复合)土工膜的受力特性，分别论述了曲线交会法和有限元法选择(复合)土工膜的两种计算方法。在有限元法中，详细给出了用柔索单元模拟土工膜的计算过程，最后用工程实例说明了该法的可行性。 |
| 关 键 词： | （复合）土工膜 布置型式 曲线交会法 有限元法 柔索单元 安全系数 |
| 文章编号： | 1001-408X(2004)03-0070-05 |
| 修稿时间： | 2004年3月2日 |
Study on Layout Pattern and Computation Theory of Impervious (Composite) Geomembrane in dike and Dam |
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| CEN Wei_jun,SHEN Chang_song,LI Xing,YANG Zi_tao.Study on Layout Pattern and Computation Theory of Impervious (Composite) Geomembrane in dike and Dam[J].Hongshui River,2004,23(3):70-74. | |
| Authors: | CEN Wei_jun SHEN Chang_song LI Xing YANG Zi_tao |
| Affiliation: | CEN Wei_jun~1,SHEN Chang_song~1,LI Xing~2,YANG Zi_tao~3 |
| Abstract: | As a kind of good impervious material, the geomembrane can be laid on the upstream face of dam, and it is sometimes used as impervious blanket, or embedded in the center of dam as impervious core. Based on the mechanical property of geomembrane, this paper made an introduction to two calculation methods of geomembrane, i..e curve intersection method and finite element method (FEM). In FEM, detailed calculation procedure is provided as using soft cable element. At last, an engineering case demonstrates the feasibility of FEM. |
| Keywords: | (composite) geomembrane layout pattern curve intersection method FEM soft cable element safety factor |
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